## Subtraction Strategies

Great ideas for teaching subtraction strategies in 2nd and 3rd grade. **The actual structure is good for all grades.** Notice how she frames the problems on the board, this is a great way to jumpstart mathematical conversations about strategies.

Happy Mathing,

Dr. Nicki

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MathFlix is a video resource library to illustrate how to do math. Check it out! I would send this home as one of the links for parents/guardians to visit to help their students with math!

Happy Mathing,

Dr. Nicki

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Here are some powerpoints and videos on alternative algorithms.

Happy Mathing,

Dr. Nicki

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## More Math Strategy Resources

Here are two great math strategy posters!

Happy Mathing,

Dr. Nicki

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## More on Double Numberlines and Fractions

Here are some examples of modeling subtraction of fractions with double numberlines. Remember that with any model, teach it in the whole group, practice it in small guided math groups and math workstations.

Happy Mathing,

Dr. Nicki

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## Another Great Resource of Ideas about Teaching Multiplication and Division

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Dr. Nicki

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## Understanding Equality!

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Great Graphic Organizers for this concept!

Happy Mathing,

Dr. Nicki

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## Russian Peasant Method of Doubling and Halving

Here is another strategy for multiplying double digit numbers .It is a method that you would teach at the abstract level. It uses the strategy of Doubling/Halving. It is often called the Russian Peasant Method. Here are some video examples.

Video 3

Video 4

Happy Mathing,

Dr. Nicki

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## Multiplicative Comparison Problems

Multiplicative Comparison type problems are explored in 4th and 5th grade. Here are some great resources explaining these problem types. There are several different types within the multiplicative comparison genre. Remember that the research says that it is important for students to understand the type of problem they are solving rather than “key words.”

Resource 1 (Be sure to look at all the related resources at the bottom of the page)

Resource 5 – Math Video

Resource 6 – Math Video

Resource 7 – Math Video

Multiplicative Comparison Video!

Happy Mathing,

Dr. Nicki

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## Overview of Progression in Division

I love this concept of a Passport to Division 1! Other resources to help on the journey through the land of division!

Resource 3 (I like the way they break the concepts down)

Happy Mathing,

Dr. Nicki

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